Liquid-dispensing apparatus.



R. G. MARSH.

LIQUID DISPENSING APPARATUS. APPLICATION FILED ocT. 23. 1911.

Patented J an. 25, 1916.

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Rek @1% @16.9 Ircgemxh THE COLUMBIA PLANDGRAPH co., WASHINGTON. u. c

R. G. MARSH.

LIQUID DISPENSING APPARATUS.

APPLICATION FILED OCT. 23. 1911- Patented J an. 25, 1916.

wi/Imaam W M WM THE COLMHM PLANOGRAPH co., WASHINGTON, D. c.

R. G. MARSH.

LIQUID nIsPENsING APPARATUS.

APPLICATION FILED OCT- 23. 19H.

Rab amat @so THE COLUMBIA PLANOGRAPH co., WASHINGTON, nA c.

UNITED STATES `ATE ROBERT GEO. MARSH, OF DETROIT, MICHIGAN, ASSIGNOR TOTHE MARSH AUTOMATIC SODA FOUNTAIN CO., OF DETROIT, MICHIGAN, ACORPORATION OF MICHIGAN.

LIQUID-DISPENSING APPARATUS.

Application filed Uctober 23, 1911.

To all whom t may concern.'

Be it known that I, ROBERT GEO. MARSH, a citizen of the United States ofAmerica, residing at Detroit, in the county of Tayne and State ofMichigan, have invented certain new and useful Improvements inLiquid-Dispensing Apparatus, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to an apparatus for delivering measuredquantities of fluid and more particularly to such an apparatus suitablefor soda water fountains and other beverage dispensing devices, and itsobject is to provide a simple and convenient device having certain newand useful features in the construction and arrangement of its parts,the invention consisting in the matters hereinafter set forth and moreparticularly pointed out in the claims, reference being had to theaccompanying drawings in which Figure l is a side elevation of anapparatus embodying the invention and showing the same embodied in asoda fountain with adjacent parts of the fountain in section;

Fig. 2 is an enlarged sectional detail of one,

of the valves; Fig. 3 a cross sectionA of the same on the line m-x ofFig. 2; Fig. l is a vertical section through the apparatus de tachedfrom the fountain; Fig. 5, a cross section of the same on the line y-g/of Fig. Ll; Fig. 6, a section on the line z-e of Fig. 5; Fig. 7 is aplan view of Fig. 1l; Fig. S is a sectional detail showing a modifiedconstruction; and Fig. 9, a side elevation of Fig. 3 with parts insection.

For convenience of illustration, the invention is shown in Fig. 1 asapplied to a soda water fountain and in this structure 1 represents atable top or counter to the underside of which a suitable cast metalframe 2 is secured having two valve cylinders 3 and 4 formed integraltherewith and connected with each other by a bridge bar 5, Eachcylinder` is bored to receive a piston valve 6 which fits therein and atits inner end leach cylinder bore is enlarged to form a chamber 7 havingan inlet and an outlet port. The inlet port 8 of the cylinder 3 islocated at the axis of its inner end and a pipe 9 leading to this portis attached to cooling pipes 10 located in a tank 1l which may be filledwith Speciicaton of Letters Patent.

Patented J an. 25, 1916.

Serial No. 656,110.

ice. Leading from the opposite end of the cooling pipes is a pipe l2which is connected to a tank 13 containing carbonated water or similarfluid under pressure. The pressure in the. tank 13 thus forces the waterup through the pipes into the valve cylinder 3 under control of thepiston6 which is provided with a block lll of rubber or other flexiblematerial to seat upon the inner end of the cylinder and close the inletport 8.

The outlet port 15 of the cylinder 3 is formed by a passage 16 whichcuts into the top of the chamber 7 and extends through the bridge bar 5,opening at its opposite end into the chamber 7 of the cylinder 4lthrough the inlet port 17 of said cylinder. In the rear end of thispassage 16 is secured a pipe 1S leading downward to a small measuringreceptacle 19 located within the ice tank 11 whereA its contents will bekept cool. An axial outlet port 20 in the end of the cylinder Llconnects'with a pipe 21 leading into a mixing nozzle 22 which is formedwith a chamber 23 having a discharge opening at its lower end. The endof the pipe 21 is provided with a downturned end forming a dischargenozzle 24 for directing a stream through the opening in the mixingnozzle, and the pipe is also provided. with a small discharge opening 25near the upper end of the chamber 23 to cause the carbonated water tofoam in said chamber.

Each of the valve pistons 6 is guided in its cylinder to movelongitudinally therein toward and from the seatupon the end of thecylinder, by guides or keys 26 which prevent the piston from turning,and to move each piston, each is formed with an axial screwthreadedopening to receive the inner screwthreaded Vend 27 of a rod 23 whichextends outward through a. packing nut 29 screwed into the end of thecylinder and is provided with a gear 30 on its outer end. Said rod isformed with a iange 31 to engage a groove in the cylinder at the innerend of the stufling box or nut 29 and prevent any longitudinal movementof the rod thro-ugh the box. By its screw-threaded engagement with thepiston, said rod thus moves the valve toward or from its seat when therod is turned by means of the gear 30.

A tubular operating member 32 is mounted in suitable bearings 33 `andl34 on theV frame 2 to move freely therein and'this tube is providedwith a longitudinalslot in .its lower side into which the gears 30proiect. fr rack bar 36 is adjustably held within the tube in a positionto be engaged by the gears when the tube ismovedlongi`l` tudinallythrough the bearings, and this rack is'so located and of such a lengththat said gears will be turned successively by it in the properdirection and far enough to actuate` thevalves the proper distance andin therdesired direction. By means of a` small rod 37 securedtoone endof the rack bar, `said bar may be moved longitudinally in the tube toadjust it relatively to the gears and the rod is-actuated by a rotatablemember 3S secured inthe forward end of the tube. against longitudinalmovement therein but free to turn and having a'screw threaded axialopening to receive the screwthreaded end ofthe rod. The length of theslot 35 is such that when the tube is moved to the limit of itsmovementin either direction, one gear Vwill be engaged by one end ofVsaid s lot'and the other gear will be in engagement with therack so thatboth vided for delivering measured `quantities ofl fiavoring or syrupwiththe sodajxwater, com-` prising an inverted cup 39 secured upon thelower end of a tube 40 which is secured at its upper end within asuitable bearing bracket 4l extending downward from ther frame 2. rlhetube extends downward-within a-suitable glass jar 42 or other containerfor syrup with the cup near the bottom of the container and leading fromthe upper end of said tube in a small pipe 43 which extends forwardlyinto themixing nozzle 22 and opens into the chamber 23 thereof todeliver syrup thereto fromthe tube.

To force measured quantities of syrup up through the tube, a rod 44extends through a stufling box 45 at theupper end of the tube.l anddownward in the axis of said tube 40 to the cup 39where it is providedwith a valve comprising ay disk 46 upon-the lower end of the rod whichdisk is of considerably less diameter than theinternal diameter ofV thecup to permit the syrup to flowy into the cup around the edge of thedisk. Fitting within the cup and loosely mounted upon the rod above thedisk, is a valve disk or member 47 having openings for the passage ofthe syrup therethrough when the valve is lifted from the surface of thedisk 46 which forms a seat therefor. VWVhen said 'valve -member is inContact withthe disk,the'space downwardly seating valve 50 adapted toslide on the VrodV 44 toward and from a seat member 51 screwed intothelower end off the chamber and formed vwith ports which are closed by thevalve.x This valve rises and permits the syrup to pass upward into thetube from the cup when the redis actu,-y ated to lift the valve 47 andforce the syrup upward. Upon the downstroke of :the prod,

and lowering of saidgvalvef47 said valve closes and holds the syrup inthe tube and at the'same time the valve 47 is lifted from its seat 'disk46 by the downward movement of the rod and the syrupis permitted to passinto the cup aroundthe edge of thedisk', and through vthe openingsinvthe valve. Y Measured uantities of syrup equal` lto the capacith oL thecup, arentherefore forced upv/arc through `the tubes 40. andl 4 3 intothe mixing chamber 23 of .the nozzle upon eachactuationv ofthe valve.47.l A

Upon the upper end ofthe ,rod is a rack-bar 52 to engage apinion53 uponone endof a short horizontal transverseshaft.-

54 mounted ina bearing j formed integral with the brdgebar 5 and uponthe opposite end of said shaft is Va gear 55 .adapted yto be engagedby`a rack bar 5G similarto the rack bar 36 and mounted within aslottedactuating tube 57 similar to thetube/32, ywhich tube 57 ismountedinhorizontal bearings 58 and 59 upon the frame?J at the sidethereofl i opposite that 'at which the tube 32gis supl ported.Eachpofthe: actuating tubes 32 and 57 is provided with ahead 4or. knob,60 on its forward end by means of which it may-be actuated by theoperatorv and adetachable handle bar 6l is provided for connecting thetubes at their forward endsso that lthey'may besimultaneouslyoperated..v-f

When the operating tubes 32- and 57 are in the position shown in Fig.6-the1valvein the cylinder 3 is .held open and the valve Y'in thecylinder 4 held closed by the engagement ofthe rack 436 and the end ofthe slot` with'v theV gears for operating said .valves7 re spectively,the rod 28for operating the said l l valve'in cylinder 3' being:provided with a*- left hand screw-thread for moving'the piston: valve.The fullfpressure of carbonated` water 1s thus free to enterthemeasuring receptacle 19 but isprevented from escaping into the mixingnozzle 22v by .the-valve in .cylinder 4." ."At the 'same timethe valveV47 1s in lowered position andthe'cup 39 is full-- of syrup sothat uponforward actuation of the operating tubes by the handle G1, the saidvalve will be lifted in the cup, forcing its contents up into thechamber 23 of the mixing nozzle. Simultaneously with the discharge ofthe syrup into the mixing chamber, the valve of cylinder 3 is closed yand the valve of cylinder A opened by said movement of their operatingtube, thus closing off the supply from the tank 13 and allowing thecarbonated water which is in the measuring receptacle under pressure toescape into the mixing chamber of the nozzle where it is mixed with thesyrup and discharged from the nozzle in condition for use. As shown inldotted lines in Fig. l, the pipe 1S is extended downward within thereceptacle to near the bottom thereof so that the gases trapped in theupper part of said receptacie will force the water in the receptacle outthrough the tube when the outlet valve in the casing slis opened,permitting said gases to expand. A measured quantity of soda water andsyrup is thus mixed and discharged by a single movement of the operatingtubes, and a measured quantity of either soda water or syrup may bedelivered by disconnecting the handle 61 from one of Vsaid tubes andmoving one of the tubes only.

It is obvious that the invention may be embodied in liquid dispensingdevices other than that illustrated in Figs. 1 to 7 inclusive, and themodiied const-ruction shown in Figs. 8 and 9 is an example of such adevice, 62 indicating a suitable liquid receptacle having a downwardlyextending discharge passage communicating with the inlet port G3 of avalve cylinder Gli. A second valve cylinder 65 is provided below thecylinder 6l and aV measuring receptacle 66 is located between saidcylinders to receive liquid admitted through the outlet port 67 of saidcylinder 64. The liquid in the measuring chamber is discharged throughan inlet portk G8 and an outlet port G9 in the cylinder 65, and theports 63 and G9 are controlled by piston valves 6 in the cylinders,constructed and operated in the same manner as the piston valves shownin Figs. 1 to 7. A vent tube 7T, extends upward from the chamber 6G intothe receptacle G2 so that the fluid will flow by gravity into thechamber. The gears 30 for actutaing these valves are spaced apart,and anoperating tube 70 having slots in its upper and lower sides to receivethe gears, is supported in a horizontal position to slide freely througha bearing 71. A rack bar 72 is provided in the tube to engage the gearat the upper side of the tube and rack bar 73 to engage thelower gear.rFliese bars may be moved longitudinally in the tube by rods 7l securedto their ends and having screwthreaded engagement with adjustingmeinbersBS similar to the members for adjusting the rack bar 36.Projections (5 on the bar 72 are provided to engage the gears and holdthem in the position to which they are turned.

A forward movement of the operating tube from the position shown in Fig9 will first close the valve in cylinder 64C and then open lthe valve incylinder 65, allowing the liquid trapped in the measuring receptacletoflowout, and an opposite movement of the operating tube will first closethe lower valve and then open the upper, to admit the liquid into themeasuring chamber.

Having thus fully described my invention what I claim is 1. In a, liquiddispensing apparatus, the combination with a liquid supply receptacle, ameasuring receptacle, a valve for controlling the flow of liquid fromone to the other of said receptacles, a discharge nozzle, and a valvecontrolling the fiow of fluid from the measuring receptacle into thenozzle; of a single longitudinally reciprocable member adapted to openone valve and to close the other and vice -versa whenever shifted fromone limit of its movement to the other.

2. ln a liquid dispensing apparatus, the combination with a liquidsupply receptacle, a measuring receptacle, a valve for controlling theiiow of liquid from one to the other of said receptacles, ay dischargenozzle, and a valve controlling the flow of liquid from the measuringreceptacle into the nozzle; of gears connected to said valve to actuatethe same, and a reciprocable rack bar to successively engage and turnsaid gears in the same direction to alternately open' and close saidvalve.

3.1n a liquid dispensing apparatus, the combination with a liquid supplyreceptacle, a measuring receptacle, a valve for controlling the flow ofliquid from one to the other of said receptacles, a discharge nozzle anda valve controlling the flow of liquid from the measuring .receptacleinto the nozzle, of gears each connected to a valve and adapted to openand close the same, and a reciprocable rack bar adapted to engage firstone gear to open one valve and then the other gear to close the othervalve when moved in one direction, and open the last mentioned valve andclose the first mentioned valve when moved in an opposite di* rection,between its limits of motion.

4. In a liquid dispensing apparatus,y the combination with ay liquidsupply receptacle, a, measuring receptacle, a valve for controlling theflow of liquid from one to the other of said receptacles, a dischargenozzle and a valve controlling the flow of liquid from the measuringreceptacle into the nozzle; of gears each connected to a valve to openand close the same, and a reciprocable member having a rack bar adaptedto successively engage said gears to open one valve and then close theother When moved from one limit of motion to the other and vice versaand provided with stops to engage andV hold the gears at each end of itsreciprocation.

V5. In a liquid dispensing apparatus, the lcombination with a liquidsupply` receptacle, a measuring receptacle, a valve for controlling theHOW of liquid from one to the other of` said receptacles, a dischargenozzle, and a valve controlling the ilovv of liquid from the measuringreceptacle into the nozzle; of gears connected to said valves to actuatethe same, a reciprocable slotted operating tube, a rack bar Within saidtube adapted to engage said gears, a rod secured to said rack bar andextending to one end of the tube, and means engaging the `end of the rodto move the same and actuate the vrack bar in the tube longitudinallythereof.

6. In al liquid dispensing apparatus, the

combination with a liquid supply receptacle,

ders to supply Huid thereto and said meas-V uring receptacle beingconnected to said passage to receive liquid from said cylinder anddischarge it into the other cylinder, valve members in said cylinders tocontrol the i'loW of liquid therethrough, means for operating saidvalves and a nozzle connect# ed to one of said cylinders to receive Huidtherefrom.v p y .7. In aliquid dispensing apparatus, the combinationWith a liquid supply receptacle, a measuring receptacle, and conduitsconnecting said receptacles; of a valve eontrolling said conduits and avalve .controlling the outlet Jfrom the measuring receptacle, each ofsaid valves comprising a cylinder having an inlet and an outlet port, avalve piston reciprocable Within said cylinder to open and close one ofthe ports, and a rod to actuate said piston, a gear on the outer end ofeach rod of each valve, and means to successively engage and turn saidgears in timed relation to each other.

8. In a liquid dispensing apparatus, the combination with a liquidsupply receptacle, a measuring receptacle, and conduits connecting saidreceptacles; of a valve controlling said conduits and a valvecontrolling the outlet from the measuring receptacle, each of saidvalves comprising a cylinder having an inlet and an outlet port, a valvepiston reciprocable within said cylinder to open and close one of theports, ay

rod having screivthreaded engagement With the piston to move the samelongitudinally when the rod is turned, gears on the outer Ycablemembers.

ends of the rods, a reciprocable member, andv a rack bar carried by saidmember to successively engage and actuate the gears.

9. In a liquid dispensing apparatus, the combination of a measuringreceptacle, a mixing nozzle, a valve controlling the flow from themeasuring receptacle to the nozzle,

a measuring cup adapted to discharge into said nozzle, means Jforforcing liquid from the cup into the nozzle, members for actuating saidvalve 4and means, and means for detachably connecting said membersWhereby they may be simultaneously or independently operated.

v10. In a' liquid dispensing apparatus, the

combination of `a measuring receptacle, a

cup adapted to kdischarge into said nozzle,

means Within the cup for forcing liquid from the cup into the nozzle, agear for actuating said means, a reciprocable member for actuating eachgear, and' a member adapted to be attached to said reciprocable membersto cause the same to move together and actuate the gears in timedrelation to each other.

12, In a liquid dispensing apparatus, the combination of a measuringreceptacle, a mixing nozzle, a valve controlling the flow from themeasuring receptacle to the nozzle, a gear for actuating said valve, ameasuring cup adapted t0 discharge into said nozzle, means within thecup for forcing liquid from the vcup'intothe nozzle, a gear foractuating said means, longitudinally re Aciprocable members connected tomove together, and rack bars carried by said reciprocable members andarranged to actir ate one of the gears in advance of the other tovoperate the valve and means Within the cup in timed relation to eachother.

In testimony whereof I aHix my signature in presence of two Witnesses.

ROBERT GEO. MARSH.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

